12 pipe bombs and tools and materials that could have been used to make bombs were found at a Redlands townhouse the shooters rented. They also found an additional 2,000 9mm rounds and 2,500+ .223 rounds.

No direct motive has yet been identified, although it was learned Friday that Tashfeen Malik was devoted to ISIS, according to two sources close to the investigation.

The Inland Regional Center is a health and community center for people with developmental disabilities in Riverside and San Bernardino counties.

While the shooting was at the IRC, the suspects targeted a gathering of county employees who were using a conference center at the facility often rented out to outside agencies.